Improvements in measures of pain, stiffness, difficulty with physical activity and overall symptom severity were recorded following 12 weeks of supplementation with a blend of extracts from three seaweeds, vitamin B6, zinc and manganese, according to findings published in joint health market is dominated by glucosamine, which is extracted from the shell of crabs, lobster and shrimps.

"These supplements, namely glucosamine, fish oil and antioxidants, may have a place in consultation with a veterinarian, but there is no proof they will be effective in preventing ailments in a healthy animal."